Level 30: Here you have reached the big 30. Give yourself a clap and move on. Except i recommend to stay at the red illusionary rogues in cave of ruin since in spirit spire, there are level 38 and 35 monsters roaming around.

Level 31 to 40

Level 31: Now is the time to move off to a different map. Now, you can go to spirit spire and there kill those black panthers. Just be careful of the ancient slayers and avoid the viragos for now.

Level 32: Keep on killing those black panthers and now you can attempt to take on viragoes. However, still avoid those ancient slayers since they hit quite a bit.

Level 33: Stay and kill those panthers and viragoes. If an ancient slayer comes into your way, you can try smack him now.

Level 34: At this stage in the game, you should have heard of 'the beach'. Well 'the beach' is located in south part of spirit spire. It is basically a training paradise. But now, do not venture too deep into the beach. Stay at the entrance and kill those ancient slayers, viragoes and sometimes scorpions when you see them.

Level 35: Now, you can move all around on the beach. Just try avoid the giant version of the ancient slayer and the amphibians. Try not to mess with those amphibians yet as they can swarm you and you will die. Kill everything else in site.

Level 36: I think now you can own the whole beach. Just walk around the beach and kill any monsters that dare to attack you. Kill around and have fun.

Level 37: Stay on the beach. By now, you might have realized that scorpions are good experience. So just go kill any scorpions you see.

Level 38: Keep staying on the beach if you want or go up the hill where there are heaps of flaming houses. There are plenty of horror knights and scorpions for good experience.

Level 39: Kill the horror knights, scorpions and green goblins. They give very sweet experience. Just beware of the corrupt monk, he can kill people even at level 40s.

Level 40: Here is the super 40. You are now 10 levels away from half way to maximum level. At this stage, you should still just stay at the horror knights since you still cannot take on the monsters in the other maps.

Conclude:

Anyway, i hope this guide has/have/had/will help you in your leveling in hero online gold. Have fun grinding and smashing those monsters!